Sectional sofa



FIG. 1 is a front perspective view of an embodiment of my new sectional sofa design;

FIG. 2 is a left, side elevation view thereof;

FIG. 3 is a right, side elevation view thereof;

FIG. 4 is a first rear elevation view thereof; and,

FIG. 5 is a second rear elevation view thereof.

The broken line disclosure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design of a sectional sofa, as shown and described. 